Update Prometheus and Grafana addons

* https://github.com/prometheus/prometheus/releases/tag/v2.28.0
* https://github.com/grafana/grafana/releases/tag/v8.0.3

CHANGES.md

@@ -16,8 +16,8 @@ Notable changes between versions.
 ### Addons
 
 * Update kube-state-metrics from v2.0.0 to [v2.1.0](https://github.com/kubernetes/kube-state-metrics/releases/tag/v2.1.0)
-* Update Prometheus from v2.27.0 to [v2.27.1](https://github.com/prometheus/prometheus/releases/tag/v2.27.1)
-* Update Grafana from v7.5.6 to [v7.5.7](https://github.com/grafana/grafana/releases/tag/v7.5.7)
+* Update Prometheus from v2.27.0 to [v2.28.0](https://github.com/prometheus/prometheus/releases/tag/v2.28.0)
+* Update Grafana from v7.5.6 to [v8.0.3](https://github.com/grafana/grafana/releases/tag/v8.0.3)
 * Update nginx-ingress from v0.46.0 to [v0.47.0](https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v0.47.0)
 
 ### Fedora CoreOS

addons/grafana/deployment.yaml

@@ -24,7 +24,7 @@ spec:
           type: RuntimeDefault
       containers:
         - name: grafana
-          image: docker.io/grafana/grafana:7.5.7
+          image: docker.io/grafana/grafana:8.0.3
           env:
             - name: GF_PATHS_CONFIG
               value: "/etc/grafana/custom.ini"

addons/prometheus/deployment.yaml

@@ -21,7 +21,7 @@ spec:
       serviceAccountName: prometheus
       containers:
         - name: prometheus
-          image: quay.io/prometheus/prometheus:v2.27.1
+          image: quay.io/prometheus/prometheus:v2.28.0
           args:
             - --web.listen-address=0.0.0.0:9090
             - --config.file=/etc/prometheus/prometheus.yaml